* Exiting the live session may get stuck with a "A start job is running for " error. You may need to forcefully power off the computer if you see this. (Bug:1706939)

* The Dock and Appindicator system extensions appear to be Off in tools like GNOME Tweaks. (They are on but cannot be disabled because they are system extensions for the Ubuntu session.) (Bug:1718850)

* Mouse & Touchpad settings and behavior will not work right in the Ubuntu desktop if `xserver-xorg-input-synaptics` is installed. Some desktop environments such as Unity require `xserver-xorg-input-synaptics`. (Bug:1686081)

* Users can experience long boot times when there is no network configured or available during boot. (Bug:1714301)

* The system hangs on boot when the user selects 'Encrypt my home directory' during installation (Bug:1670336)

* Exiting the live session may get stuck with a "A start job is running for " error. You may need to forcefully power off the computer if you see this. (Bug:1706939)

* The Dock and Appindicator system extensions appear to be Off in tools like GNOME Tweaks. (They are on but cannot be disabled because they are system extensions for the Ubuntu session.) (Bug:1718850)

* Mouse & Touchpad settings and behavior will not work right in the Ubuntu desktop if `xserver-xorg-input-synaptics` is installed. Some desktop environments such as Unity require `xserver-xorg-input-synaptics`. (Bug:1686081)

* Users can experience long boot times when there is no network configured or available during boot. (Bug:1714301)

* The system hangs on boot when the user selects 'Encrypt my home directory' during installation (Bug:1670336)

Apps provided by GNOME have been updated to 3.26. For more details about GNOME 3.26, see their Release Notes.

The Amazon app now loads in the default web browser.

Window control buttons are back on the right for the first time since 2010.

The Ubuntu GNOME flavor has been discontinued. If you are using Ubuntu GNOME, you will be upgraded to Ubuntu. Choose the "Ubuntu" session from the cog on the login screen if you would like the default Ubuntu experience.

Install gnome-session and choose "GNOME" from the cog on the login screen if you would like to try a more upstream version of GNOME. If you'd like to also install more core apps, install the vanilla-gnome-desktop metapackage.

Ubuntu Server

qemu 2.10

Qemu has been updated to the 2.10 release.

Since the last version was 2.8 see both Changelogs of 2.9 and 2.10 for details.

Among many other changes there is one that might need follow on activity by the user/admin: Image locking is added and enabled by default. This generally makes execution much safer, but can break some old use cases that now explicitly have to opt-in to ignore/share the locks by tools and subcommands using the --force-share option or the share-rw dqev property.

libvirt 3.6

Libvirt has been updated to version 3.6. See the Changelogs for details.

DPDK 17.05.2

Ubuntu 17.10 includes the latest release of DPDK that has stable updates: 17.05.2.

Open vSwitch 2.8

Remember that since version 2.7 you need to specify dpdk devices via dpdk-devargs.

New Bind9 KSK

The DNS server bind9 was updated to include the new Key Signing Key (KSK) that was published on July 11, 2017. Starting on October 11, 2017, that key will sign the root zone key, which in turn is used to sign the actual root zones. For more details, visit:

Existing installations of bind9 should automatically update their anchor keys following RFC 5011, but new installations after the rollover event on October 11th, 2017, will need this new package or have the key updated manually.

Known issues

As is to be expected, with any release, there are some significant known bugs that users may run into with this release of Ubuntu 17.10. The ones we know about at this point (and some of the workarounds), are documented here so you don't need to spend time reporting these bugs again:

Desktop

Bluetooth audio devices cannot be used in the Greeter. This will cause issues for people using the accessibility features such as screenreaders at the login screen. Once logged in everything should work as expected.

Some admin utilities will not work with GNOME on Wayland since the apps have not been adapted to use PolicyKit to only use admin privileges for the specific functions needed. As a workaround, you can use the Ubuntu on Xorg session.

Some users will not be able to log in to GNOME Shell after the upgrade. As a workaround, move ~/.config/monitors.xml somewhere else (1717923)

Exiting the live session may get stuck with a "A start job is running for " error. You may need to forcefully power off the computer if you see this. (1706939)

The Dock and Appindicator system extensions appear to be Off in tools like GNOME Tweaks. (They are on but cannot be disabled because they are system extensions for the Ubuntu session.) (1718850)

Mouse & Touchpad settings and behavior will not work right in the Ubuntu desktop if xserver-xorg-input-synaptics is installed. Some desktop environments such as Unity require xserver-xorg-input-synaptics. (1686081)

Users can experience long boot times when there is no network configured or available during boot. (1714301)

The system hangs on boot when the user selects 'Encrypt my home directory' during installation (1670336)